/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package web;

import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.InitialContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import loadUser.UserBean;

/**
 *
 * @author julio
 */
@WebServlet(name = "UserServlet", urlPatterns = {"/UserServlet"})
public class UserServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private HttpSession session;
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            InputStream input =request.getInputStream();
            ObjectInputStream s = new ObjectInputStream(input);
            String comprobacion = (String) s.readObject();
            String user =(String) s.readObject();
            //s.close();
            session = request.getSession(true);
            //if (session==null) session = request.getSession(true);
            UserBean bean=(UserBean) session.getAttribute("Bean");

            if(bean==null){
                InitialContext con= new InitialContext();
                try{
                    bean=(UserBean) con.lookup("java:module/UserBean");
                    
                }catch(Exception e){
                    System.out.println(e.getMessage());
                }
                session.setAttribute("Bean", bean);
            }
            bean.initialUserBean(user);// usuario que se lea
            if (comprobacion.equals("get")){
                s.close();
                int level = bean.getUserBean();
                OutputStream output = response.getOutputStream();
                ObjectOutputStream s2 = new ObjectOutputStream(output);
                s2.writeObject(level);
                s2.writeObject(session.getId());
                s2.flush();
                s2.close();
            }
            if (comprobacion.equals("set")){
                int level= (Integer)s.readObject();
                bean.setUserBean(level);
                s.close();
                OutputStream output = response.getOutputStream();
                ObjectOutputStream s2 = new ObjectOutputStream(output);
                s2.writeObject("OK");
                s2.writeObject(session.getId());
                s2.flush();
                s2.close();
            }
        } catch (Exception ex) {
            Logger.getLogger(UserServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
